Characterization of the interaction of rare earth elements with P507 in a microfluidic extraction system using spectroscopic analysis

IF 13.2 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2019-01-15 DOI:10.1016/j.cej.2018.09.039

Kaihua Chen , Yuan He , C. Srinivasakannan , Shiwei Li , Shaohua Yin , Jinhui Peng , Shenghui Guo , Libo Zhang

引用次数: 46

Abstract

An attempt to characterize the interaction of rare earth elements with P507 in a microfluidic extraction system containing lactic acid as complexing agent is made using spectroscopic (FT-IR, UV–Vis, NMR and MS) analysis. The role of lactic acid in the extraction process is analyzed. The extraction mechanism confirmed that lactic acid does not involve in the extraction reaction. A comparative analysis of the composition of the extracts using FT-IR, UV–Vis, NMR and MS methods, indicates that the extracted complexes of rare earth ions located in the center is formed by the cation exchange process between POH and RE³⁺, and coordination process between PO and RE³⁺.

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微流控萃取系统中稀土元素与P507相互作用的光谱分析

利用光谱(FT-IR、UV-Vis、NMR和MS)分析了稀土元素在以乳酸为络合剂的微流体萃取体系中与P507的相互作用。分析了乳酸在提取过程中的作用。萃取机理证实了乳酸不参与萃取反应。利用FT-IR、UV-Vis、NMR和MS等方法对萃取物的组成进行对比分析，发现萃取物中位于中心的稀土离子配合物是POH与RE3+的阳离子交换过程以及PO与RE3+的配位过程形成的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.